CN101554510B - Expiratory valve for respirator - Google Patents
Expiratory valve for respirator Download PDFInfo
- Publication number
- CN101554510B CN101554510B CN2009100985943A CN200910098594A CN101554510B CN 101554510 B CN101554510 B CN 101554510B CN 2009100985943 A CN2009100985943 A CN 2009100985943A CN 200910098594 A CN200910098594 A CN 200910098594A CN 101554510 B CN101554510 B CN 101554510B
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- valve
- flow sensor
- air flow
- air
- respirator
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Abstract
The invention discloses an expiratory vale for a respirator, comprising a valve body which is provided with a valve cavity, an air admission valve port and an air outlet valve port; the air outlet valve port is provided with a valve cover which is internally provided with a membrane; and the valve cavity is internally provided with an air flow sensor. The valve cavity is internally provided with afluid director which is positioned in the valve cavity between the air admission valve port and the air flow sensor. The valve body is provided with a sensor installation hole which is communicated w ith the valve cavity. In the proposal, as the valve cavity is internally provided with the air flow sensor, the expiratory valve not only has the uni-directional ventilation function, but also has theexpiratory volume measuring function, thus simplifying the structure of the respirator, and lowering the manufacturing cost of the respirator. In addition, the arrangement of the fluid director impro ves the accuracy of the measurement of the expiratory volume; the arrangement of the installation hole realizes the detachable connection mode of the air flow sensor, and when the valve cavity is cleaned and disinfected, the air flow sensor can be moved out through the installation hole first, thus causing the use and maintenance of the respirator to be convenient.
Description
Technical field
The present invention relates to a kind of parts of respiratory organ, the outlet valve of a kind of respiratory organ of more specifically saying so belongs to technical field of medical instruments.
Background technology
Respiratory organ is to rescue the indispensable equipment of critical patient, is usually used in the respiratory arrest due to the various causes of disease or the rescue and the anestheticing period of respiratory failure and breathes management.It is a kind of device of keeping and assisting patient respiration with the method for machinery, and existing respiratory organ can be divided into negative pressure device and positive pressure respirator.Negative pressure device is to utilize machine that thoracic expansion is made the intrathoracic negative pressure that becomes, make the air that is mixed with oxygen flow into pulmonary automatically, its advantage is relatively to conform with nature physiology, needn't intubate, but it can't precisely effectively control gas volume, flow and airway pressure, therefore less use.Positive pressure respirator is to utilize machine, the air that is mixed with oxygen is pressed into patient's pulmonary by the mode of intubate or non-intubate.It is respiratory organ relatively more commonly used now.
The outlet valve of existing positive pressure respirator is a kind of check valve, it comprises valve body, valve body has valve pocket, intake valve port and the valve port of giving vent to anger, the valve port of giving vent to anger is provided with diaphragm, when patient locates the expiration state, because the gas pressure diaphragm detaches the air valve mouth, the outlet valve conducting, when patient locates suction condition, diaphragm is close to the valve port of giving vent to anger, and outlet valve cuts out.Because the expiration amount and the inspiration capacity of respiratory organ all need to be controlled, for this reason, existing respiratory organ needs to insert a metering device of measuring the expiration amount near outlet valve, therefore have deficiencies such as complex structure, use inconvenience, but also causes the rising of respiratory organ manufacturing cost.
Summary of the invention
At the problems referred to above, quasi-solution of the present invention is determined provides a kind of outlet valve with expiration quantitative determination function, to simplify the structure of respiratory organ, makes things convenient for the use of respiratory organ, reduces the manufacturing cost of respiratory organ.
For achieving the above object, the present invention by the following technical solutions: a kind of outlet valve of respiratory organ, it comprises valve body, described valve body has valve pocket, intake valve port and the valve port of giving vent to anger, the described valve port of giving vent to anger is provided with valve gap, and described valve gap is built-in with diaphragm, is provided with air flow sensor in the described valve pocket.Be provided with air deflector in the described valve pocket, in the valve pocket of described air deflector between intake valve port and air flow sensor.Also be provided with the air blowing aperture on the described valve body, described air blowing aperture is communicated with valve pocket, and the opening of described air blowing aperture in valve pocket is between air deflector and intake valve port.
Described air deflector is the cylinder that has semidiameter more than two.
Described valve body is provided with the pick off installing hole, and described pick off installing hole is communicated with valve pocket.
Adopt such scheme, owing to be provided with air flow sensor in the valve pocket, it has made full use of the space of valve pocket, when making outlet valve have unidirectional ventilation, also possessed expiration quantitative determination function, to whole breathing, the present invention simplifies the structure of respiratory organ,, the manufacturing cost of reduction respiratory organ.In addition, the setting of air deflector makes the turbulent gases in the valve pocket convert advection to, improves the degree of accuracy of expiration quantitative determination; The setting of installing hole makes air flow sensor realize dismountable connected mode, during to the valve pocket cleaning-sterilizing, can by installing hole air flow sensor be shifted out earlier, makes respiratory organ easy to use, also makes things convenient for the maintenance of outlet valve.When air deflector has the globule, can blow to air deflector by the air blowing aperture, make the globule evaporation of air deflector.
Description of drawings
Fig. 1 is the structural representation of the outlet valve of respiratory organ of the present invention;
Fig. 2 is the structural representation of air deflector.
Among the figure: 1-valve body, 2-valve pocket, 3-intake valve port, the 4-valve port of giving vent to anger, 5-valve gap, 6-diaphragm, 7-air flow sensor, 8-air deflector, 9-pick off installing hole, 10-air blowing aperture.
The specific embodiment
As shown in Figure 1, the outlet valve of respiratory organ of the present invention, it comprises valve body 1, and described valve body 1 has valve pocket 2, intake valve port 3 and the valve port 4 of giving vent to anger, and the described valve port 4 of giving vent to anger is provided with valve gap 5, and described valve gap 5 is built-in with diaphragm 6.The outlet valve of said structure and prior art does not have the difference of essence, therefore is not described in detail.
As one of main feature of the present invention, be provided with air flow sensor 7 in the described valve pocket 2.Air flow sensor 7 can adopt commercially available air flow sensor 7 products, AWM720 product as Honeywell Inc.'s sale, here need to prove, the air flow sensor 7 in valve pocket of the present invention and the control device of respiratory organ make control device can obtain the information of air flow sensor 7 by being electrically connected.
As improvement, be provided with air deflector 8 in the described valve pocket 2, in the valve pocket 2 of described air deflector 8 between intake valve port 3 and air flow sensor 7.The gas measured of air flow sensor 7 just, the processing by air deflector 8 in advance is even the turbulent gases in the valve pocket converts advection to.Described air deflector 8 is the cylinders that have semidiameter more than two, and present embodiment is three cylinders (referring to Fig. 2) that radius is different, and each cylinder is fixed by the dowel of radial direction.
In addition, described valve body 1 is provided with pick off installing hole 9, and described pick off installing hole 9 is communicated with valve pocket 2.In general, being set to of installing hole 9 is vertical with valve pocket 2, and installing hole 9 can be provided with and air flow sensor 7 fixed results, is provided with screw thread as installing hole 9 hole walls, can also enumerate no longer one by one here with fixed forms such as bayonet sockets certainly.In addition, the connecting line of air flow sensor 7 also penetrates by installing hole 9.
Described valve body 1 is provided with air blowing aperture 10, and described air blowing aperture 10 is communicated with valve pocket 2, and the opening of described air blowing aperture 10 in valve pocket 2 is between air deflector (8) and intake valve port (3).When air deflector has the globule, can blow to air deflector by the air blowing aperture, make the globule evaporation of air deflector.
Claims (3)
1. the outlet valve of a respiratory organ, it comprises valve body (1), described valve body (1) has valve pocket (2), intake valve port (3) and the valve port of giving vent to anger (4), the described valve port of giving vent to anger (4) is provided with valve gap (5), described valve gap (5) is built-in with diaphragm (6), is provided with air flow sensor (7) in the described valve pocket (2); Be provided with air deflector (8) in the described valve pocket (2), in the valve pocket (2) of described air deflector (8) between intake valve port (3) and air flow sensor (7); It is characterized in that described valve body (1) is provided with air blowing aperture (10), described air blowing aperture (10) is communicated with valve pocket (2), and the opening of described air blowing aperture (10) in valve pocket (2) is between air deflector (8) and intake valve port (3).
2. the outlet valve of respiratory organ according to claim 1 is characterized in that described air deflector (8) is the cylinder that has semidiameter more than two.
3. the outlet valve of respiratory organ according to claim 1 and 2 is characterized in that described valve body (1) is provided with pick off installing hole (9), and described pick off installing hole (9) is communicated with valve pocket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100985943A CN101554510B (en) | 2009-05-18 | 2009-05-18 | Expiratory valve for respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100985943A CN101554510B (en) | 2009-05-18 | 2009-05-18 | Expiratory valve for respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101554510A CN101554510A (en) | 2009-10-14 |
| CN101554510B true CN101554510B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100985943A Expired - Fee Related CN101554510B (en) | 2009-05-18 | 2009-05-18 | Expiratory valve for respirator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101554510B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2569467B (en) * | 2012-04-05 | 2019-10-30 | Fisher & Paykel Healthcare Ltd | Respiratory assistance apparatus |
| CN104874084B (en) * | 2014-02-28 | 2019-07-05 | 北京谊安医疗系统股份有限公司 | Outlet valve and ventilator with it |
| US11433210B2 (en) | 2014-05-27 | 2022-09-06 | Fisher & Paykel Healthcare Limited | Gases mixing and measuring for a medical device |
| CN105617527B (en) * | 2014-11-06 | 2020-06-02 | 深圳迈瑞生物医疗电子股份有限公司 | Safety valve and breathing machine |
| CN106922131B (en) * | 2014-11-07 | 2019-07-23 | 深圳迈瑞生物医疗电子股份有限公司 | A kind of outlet valve |
| GB2599020B (en) | 2015-12-02 | 2022-06-22 | Fisher & Paykel Healthcare Ltd | Flow path sensing for flow therapy apparatus |
| WO2018011358A1 (en) * | 2016-07-13 | 2018-01-18 | Aerofit.Dk Aps | Respiratory device and system for exercising and analysing respiration of a subject |
| CN110064115B (en) * | 2019-06-10 | 2020-01-03 | 常州市第一人民医院 | Frequency regulating valve for breathing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4727871A (en) * | 1985-10-28 | 1988-03-01 | Infrasonics, Inc. | Ventilator exhalation system |
| US5813399A (en) * | 1993-03-16 | 1998-09-29 | Puritan Bennett Corporation | System and method for closed loop airway pressure control during the inspiratory cycle of a breath in a patient ventilator using the exhalation valve as a microcomputer-controlled relief valve |
| CN1668243A (en) * | 2002-07-24 | 2005-09-14 | 弗萨米德医疗系统有限公司 | Respiratory flow sensor |
| CN2933450Y (en) * | 2006-08-16 | 2007-08-15 | 杨福生 | Ventilation proportion valve for respirator |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN101311683A (en) * | 2007-12-29 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Breathing machine and its low differential pressure type flow quantity detection mechanism |
| CN101642597A (en) * | 2008-08-05 | 2010-02-10 | 北京谊安医疗系统股份有限公司 | Expiratory valve |
-
2009
- 2009-05-18 CN CN2009100985943A patent/CN101554510B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4727871A (en) * | 1985-10-28 | 1988-03-01 | Infrasonics, Inc. | Ventilator exhalation system |
| US5813399A (en) * | 1993-03-16 | 1998-09-29 | Puritan Bennett Corporation | System and method for closed loop airway pressure control during the inspiratory cycle of a breath in a patient ventilator using the exhalation valve as a microcomputer-controlled relief valve |
| CN1668243A (en) * | 2002-07-24 | 2005-09-14 | 弗萨米德医疗系统有限公司 | Respiratory flow sensor |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN2933450Y (en) * | 2006-08-16 | 2007-08-15 | 杨福生 | Ventilation proportion valve for respirator |
| CN101311683A (en) * | 2007-12-29 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Breathing machine and its low differential pressure type flow quantity detection mechanism |
| CN101642597A (en) * | 2008-08-05 | 2010-02-10 | 北京谊安医疗系统股份有限公司 | Expiratory valve |
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| CN101554510A (en) | 2009-10-14 |
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